Annual report pursuant to Section 13 and 15(d)

Organization and Significant Accounting Policies (Details)

v2.4.0.6
Organization and Significant Accounting Policies (Details)
3 Months Ended 12 Months Ended 12 Months Ended
Mar. 31, 2013
USD ($)
Dec. 31, 2012
USD ($)
Sep. 30, 2012
USD ($)
Jun. 30, 2012
USD ($)
Mar. 31, 2012
USD ($)
Dec. 31, 2011
USD ($)
Sep. 30, 2011
USD ($)
Jun. 30, 2011
USD ($)
Mar. 31, 2013
USD ($)
Mar. 31, 2012
USD ($)
Mar. 31, 2011
USD ($)
Mar. 31, 2013
EUR (€)
Mar. 31, 2013
OEM
USD ($)
Mar. 31, 2013
Net sales
Electronics distributor risk
Mar. 31, 2012
Net sales
Electronics distributor risk
Mar. 31, 2011
Net sales
Electronics distributor risk
Mar. 31, 2013
Net sales
Electronics distributor risk
TTI, Inc.
USD ($)
Mar. 31, 2012
Net sales
Electronics distributor risk
TTI, Inc.
USD ($)
Mar. 31, 2011
Net sales
Electronics distributor risk
TTI, Inc.
USD ($)
Mar. 31, 2013
Accounts receivable
Credit risk
item
Mar. 31, 2012
Accounts receivable
Credit risk
item
Mar. 31, 2013
Interest-bearing deposit placed with European bank
USD ($)
Mar. 31, 2013
Interest-bearing deposit placed with European bank
EUR (€)
Cash Equivalents                                              
Money market accounts $ 30,000,000       $ 26,200,000       $ 30,000,000 $ 26,200,000                          
Inventories                                              
Inventory consigned at customer locations 10,800,000       9,500,000       10,800,000 9,500,000                          
Property and Equipment                                              
Depreciation expense                 43,300,000 42,100,000 50,600,000                        
Impairment charges                 7,300,000 15,800,000                          
Restricted Cash                                              
Prepayment received from an original equipment manufacturer (OEM)                 15,284,000       24,000,000                    
Restricted cash 17,397,000       2,204,000       17,397,000 2,204,000     15,300,000                 2,100,000 1,700,000
Guarantee issued by the European bank in conjunction with the establishment of a VAT registration in The Netherlands 1,900,000               1,900,000     1,500,000                      
Concentrations of Credit and Other Risks                                              
Net sales $ 203,034,000 $ 200,297,000 $ 215,991,000 $ 223,632,000 $ 210,668,000 $ 218,795,000 $ 265,514,000 $ 289,856,000 $ 842,954,000 $ 984,833,000 $ 1,018,488,000           $ 127,800,000 $ 125,600,000 $ 133,500,000        
Number of customers whose accounts receivable balances exceeded 10% of gross accounts receivable                                       0 0    
Concentration risk, percentage                           45.00% 42.00% 50.00%